backlight: separate default case from backlight in subsystem switch

src/controlCenter/widgets/backlight/backlight.vala

@@ -30,12 +30,6 @@ namespace XimperShellNotificationCenter.Widgets {
 
                 switch (subsystem) {
                     default :
-                    case "backlight":
-                        if (subsystem != "backlight"
-#if HAVE_DDC
-                            && subsystem != "ddc"
-#endif
-                        ) {
                         info ("Invalid subsystem %s for device %s. " +
                               "Use 'backlight', 'leds'" +
 #if HAVE_DDC
@@ -43,7 +37,9 @@ namespace XimperShellNotificationCenter.Widgets {
 #endif
                               ". Using default: 'backlight'",
                               subsystem, device);
-                        }
+                        client = new BacklightUtil ("backlight", device);
+                        break;
+                    case "backlight":
                         client = new BacklightUtil ("backlight", device);
                         slider.set_range (min, 100);
                         break;